8003280: Add lambda tests

Turn on lambda expression, method reference and default method support

Reviewed-by: jjg

langtools/test/tools/javac/lambda/LambdaExpr10.java

@@ -0,0 +1,37 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8003280
+ * @summary Add lambda tests
+ *  check that lambda in array initializers (with wrong type) are correctly rejected
+ * @compile/fail/ref=LambdaExpr10.out -XDrawDiagnostics LambdaExpr10.java
+ */
+
+class LambdaExpr10 {
+
+    interface Block<T> {
+       void m(T t);
+    }
+
+    void apply(Object[] obj_arr) { }
+
+    void test1() {
+        Object[] arr1 =  { t -> { } };
+        Object[][] arr2 =  { { t -> { } } };
+    }
+
+    void test2() {
+        Object[] arr1 =  new Object[]{ t -> { } };
+        Object[][] arr2 =  new Object[][]{ { t -> { } } };
+    }
+
+    void test3() {
+        apply(new Object[]{ t -> { } });
+        apply(new Object[][]{ { t -> { } } });
+    }
+
+    void test4() {
+        Block<?>[] arr1 =  { t -> t };
+        Block<?>[] arr2 =  new Block<?>[]{ t -> t };
+        apply(new Block<?>[]{ t -> { }, t -> { } });
+    }
+}